Old Trafford is not too scary for the away team because we saw that the away team could easily beat manchester united at Old trafford. So with the previous defeat to Newcastle united, it is likely that Chelsea can try to win this match.
Looking at the two teams, in fact, they are equally sick. They're not in good form, so they equally have a chance. But with Man United's condition of playing home they have a better mentality. There are several percent of supporting factors that make Man United more passionate. But it was indeed the final week's win against Brighton. They won by a margin of 1 goal even with 10 players. In addition, Man United is currently in a bad condition. There are reports that Ten Hag is starting to be distrusted by the players. This is because Ten Hag is too rigid in coaching.
Manchester United have had a tough time in the opening third of the season despite their perhaps surprising league position, and have been notably inconsistent across all competitions. I think both teams have been inconsistent this season. In their last 10 outings, Manchester United have won five games against teams in the lower half of the table in Everton, Luton, Sheffield and Fulham, and have failed to win against any of the top 9 in the league. This should give up a clue on how their game with Chelsea might turn out tomorrow.
Also Chelsea haven't won at Old Trafford in a decade gives Manchester United the advantage to win here but Chelsea have looked at their best against big teams this season holding Arsenal, Liverpool and Manchester City to draws and stopping Tottenham's unbeaten start to the season. So I don’t expect Chelsea to lose this game considering the stats.